<p>Use NULL rather than "" to signal that we are<br>
not passing any pins to the keyring_enter_pin<br>
function.</p>

<hr>

<h4>You can merge this Pull Request by running</h4>
<pre>  git pull https://github.com/opentechinstitute/olsrd no-11-fix</pre>
<p>Or view, comment on, or merge it at:</p>
<p>  <a href='https://github.com/opentechinstitute/olsrd/pull/12'>https://github.com/opentechinstitute/olsrd/pull/12</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Fix Issue 11</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/opentechinstitute/olsrd/pull/12/files#diff-0">lib/mdp/src/olsrd_mdp.c</a>
    (2)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/opentechinstitute/olsrd/pull/12.patch'>https://github.com/opentechinstitute/olsrd/pull/12.patch</a></li>
  <li><a href='https://github.com/opentechinstitute/olsrd/pull/12.diff'>https://github.com/opentechinstitute/olsrd/pull/12.diff</a></li>
</ul>